Uninterruptible power supply UPS advantages
The main advantage of uninterruptible power supplies is its uninterrupted power supply capability. When the mains AC input is normal, the UPS rectifies the AC rectifier into DC power, and then converts the DC into a stable impurity-free alternating current, which is used for the post-stage load. Once the mains AC input exception, such as undervoltage or power outage or the frequency is abnormal, then the UPS will enable the backup energy - battery, UPS rectifier circuit will be shut down, the corresponding, will the battery DC into a stable Impurity of the alternating current, continue to use the post-class load. This is the UPS uninterrupted power supply origin.
Simply said there are the following: 1, you can delay. 2, can be regulated. 3, this is not well known: UPS works is the exchange of DC and then switch to exchange, so he has a very important role is: the utility network can be the majority of noise, interference and surge absorption Filter, and output pure AC, so that you can better protect the equipment in the fragile control system, so that its work more stable and extend the service life.
Figure 1 is a typical UPS block diagram.
Of course, UPS's uninterrupted power supply time is not infinite, this time is subject to the battery itself to store the size of energy. If the AC power outage occurs, then the UPS battery power in the valuable time, you need to do is to quickly restore the AC, such as the use of standby AC circuit, enable the oil generator, it is not, we can only save the emergency, save the fruits of labor, wait AC power to normal and then continue.
